Question

An object is placed at a distance of 15cm from a convex mirror and image id formed ata distance of5cn fromthe mirror.Calculate the radius of curvature of the mirror.
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Answer 1

$\huge\underline\bold\red{Question}$

An object is placed at a distance of 15cm from a convex mirror and image id formed ata distance of5cn fromthe mirror.Calculate the radius of curvature of the mirror??

$\huge\boxed{\fcolorbox{orange}{pink}{Answer}}$

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U= -15cm

v= 5cm

f= ?

and to find a radius of curvature formula is

R=2f

so, using mirror formula

1/f=1/u+1/v

putting values

1/f=1/-15+1/5

1/f=5+(-15)/75

1/f= -10/75

cross multiple

-10f=75

f=75/-10

f= -7.5

So, R=2f

2×-7.5

$\huge\boxed{\fcolorbox{orange}{orange}{R=-15}}$

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Answer 2

Answer:

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➡ An object is placed at a distance of 15cm from a convex mirror and image id formed ata distance of 5cn from the mirror. Calculate the radius of curvature of the mirror.

the radius of curvature of the mirror.

$\text{\large\underline{\pink{</em></strong><strong><em>SOL</em></strong><strong><em>UTION</em></strong><strong><em>}}}$

▶U= -15cm

▶v= 5cm

▶f= ?

➡And to find a radius of curvature formula is

⭐R=2f⭐

so, using mirror formula

✏1/f=1/u+1/v

▶putting values

=> 1/f=1/-15+1/5

=> 1/f=5+(-15)/75

=> 1/f= -10/75

➡cross multiple

=> -10f=75

▶f=75/-10

▶f= -7.5

➡So, R=2f

➡2×-7.5

$\bold{\huge{\fbox{\color{blue} {R =\: -15}}}}$

Explanation:

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